<div class="test-container" style="height: 100%; display: flex; flex-direction: column">
    <div>
        <button onclick="onSetData()">Set Data</button>
        <button onclick="onClearData()">Clear Data</button>
        <button onclick="onScroll()">Scroll</button>
        <span id="output">Time taken:</span>
    </div>
    <div id="myGrid" style="flex-grow: 1"></div>
</div>
